Running races in Maryland in Mar 2027

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  Seneca Creek Greenway Trail Marathon & 50K

  Sat 6 Mar 2027 · Gaithersburg, MD · 50K · Marathon
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  B&A Trail Marathon and Half Marathon

  Sun 7 Mar 2027 · Severna Park, MD · Marathon · Half Marathon

  Runs the old Baltimore & Annapolis rail trail

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  St. Patrick's Day Shamrock 5K

  Sun 14 Mar 2027 · Baltimore, MD · 5K

  Part of Baltimore's St. Patrick's Day Parade weekend

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  HAT Run 50K

  Sat 20 Mar 2027 · Havre de Grace, MD · 50K

  Two singletrack loops with four stream crossings

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  Annapolis Running Festival

  Sat 20 Mar 2027 · Annapolis, MD · Half Marathon · 10K · 5K

  Road race through historic downtown Annapolis

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  Georgetown Run/Walk

  Sat 27 Mar 2027 · Chestertown, MD · Marathon · Half Marathon · 10K · 5K
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  Rosaryville Half Marathon, 10K and 5K

  March 2027 · Upper Marlboro, MD · Half Marathon · 10K · 5K

  Trail loops through Rosaryville State Park, Maryland

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Every race here is published by its organiser; RunCalendar checks the date and the entry window against the organiser's own page and rebuilds this calendar every night. A confirmed date shows its day; a provisional one shows only its month. Last updated 22 October 2026.